Home / 202,095.12-278,889.80-111,454.76

Finding the Fourth Proportional to 202,095.12, 278,889.80 and 111,454.76

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Solution

The fourth proportional to 202,095.12, 278,889.80 and 111,454.76 is: 153,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,095.12 : 278,889.80 = 111,454.76 : x
  2. Step 2: Convert to fraction form
    202,095.12/278,889.80 = 111,454.76/x
  3. Step 3: Cross multiply
    202,095.12x = 278,889.80 × 111,454.76
  4. Step 4: Simplify right side
    202,095.12x = 31,083,595,725.45
  5. Step 5: Solve for x
    x = 31,083,595,725.45/202,095.12
  6. Step 6: Final answer
    x = 153,806.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.